Pharma test WHT 4 - Fully Automated 4-in-1 Tablet Testing Instrument

Test weight, thickness (or height), diameter (or length), and hardness of regular tablets, odd shaped tablets (caplets, oblongs etc.) and other solid samples fully automatically. Use the WHT 4 for the fully automated testing of single tablet critical parameters including weight (in compliance to the European and German Pharmacopoeia for uniformity of mass), thickness, diameter and the tablet hardness also according to the European EP <2.9.8> and USP <1217> Pharmacopoeia.


 Operation Principle of the Hardness Measurement


The current monographs of the USP and EP Pharmacopoeia define how a tablet hardness testing instrument should work, but without establishing data of how to increase the applied force and when to detect a sample to be broken. This often causes problems when trying to compare results of the same tablet measured with instruments from different manufacturers. The hardness result is directly influenced by the contact speed and force increase rate of testing instrument. A faster operated test jaw means a lower reproducibility and often higher absolute results. In order to offer the possibility to select an operating mode which will offer you similar results to other instruments you may already use, WHT 4 allows to set the force mode by selecting between linear force increase or linear speed increase and the set the force rate. When the instrument detects that the sample has been touched, it switches to the measuring mode and starts to increase the force applied to the sample.

 


Left: WHT 4 with WHT-SM Multi-batch Feeder; Right: Single Batch Feeder WHT 4-SM1


Features

  • Tablet hardness testing in full compliance to USP <1217> and EP <2.9.8> Pharmacopeia
  • 4 results of the same sample: thickness, diameter, hardness and weight (via internal balance)
  • Complete system of instrument, PC and software
  • Dual force mode instrument with linear speed increase and linear force increase modes
  • Multiple point validation procedure for all measurement stations built-in

 

Advantages

  • Fully automated operation
  • Fully integrated system including integrated PC and software
  • Unique flap mechanism to precisely position samples for hardness and diameter test
  • No change of tools necessary to handle different tablet shapes
  • Stainless steel housing to fit well into a production area
  • Standard version of WHT32 software package included and pre-installed in the standard supply
  • IQ/OQ documents included free of charge


Please contact us for more details.